Can I use voip to tunnel a voice T1 over an IP network?

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Mar 7th, 2008
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We have two analog phone switches currently connected together via a point to point private T1 line. I would like to replace the T1 between the switches with a pair of Cisco routers and IP network connection (we have plenty of bandwidth for it). What Cisco hardware would I need and what would the configuration look like? Thanks!

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dknov Sat, 03/08/2008 - 17:53
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Two methods I am aware of for this case:

1. Circuit Emulation over IP (CEoIP)


2. Transparent CCS (T-CCS)


T-CCS is a more legacy one, but I have used it a few years back to interconnect two Avaya PBXes over WAN circuit.



paolo bevilacqua Sun, 03/09/2008 - 07:39
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Can I add something to the advice above. These methods are generally used for when the PBX protocols as so proprietary that regular VoIP doesn't work.

In 99.9% of the cases, you do a regular voip configuration that has many advantages over TCCS or CES, and everything works perfectly.


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